Resin powder for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object

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United States of America

PATENT NO 12208571
APP PUB NO 20220048245A1
SERIAL NO

17513618

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Abstract

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A resin powder for solid freeform fabrication has a 50 percent cumulative volume particle diameter of from 5 to 100 μm and a ratio (Mv/Mn) of a volume average particle diameter (Mv) to the number average particle diameter (Mn) of 2.50 or less and satisfies at least one of the following conditions (1) to (3):

    (1): Tmf1>Tmf2 and (Tmf1−Tmf2)≥3 degrees C., both Tmf1 and Tmf2 are measured in differential scanning calorimetry measuring according to ISO 3146.(2): Cd1>Cd2 and (Cd1−Cd2)≥3 percent, both Cd1 and Cd2 are measured in differential scanning calorimetry measuring according to ISO 3146, and(3): C×1>C×2 and (C×1−C×2)≥3 percent.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTD3-6 NAKAMAGOME 1-CHOME OHTA-KU TOKYO 143-8555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higuchi, Shinzo Tokyo, JP 21 135
Iida, Sohichiroh Kanagawa, JP 17 58
Iwatsuki, Hitoshi Kanagawa, JP 71 986
Kamoda, Kiichi Kanagawa, JP 21 101
Saito, Akira Kanagawa, JP 291 2976
Suzuki, Yasuo Shizuoka, JP 441 5346
Tamoto, Nozomu Shizuoka, JP 103 1579
Yaguchi, Shigenori Tokyo, JP 47 421
Yamashita, Yasuyuki Kanagawa, JP 53 673

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